code: def merge(self, other):
      new_title = other.title if other.title is not None else self.title
      new_xlabel = (
          other.xlabel if other.xlabel is not None else self.xlabel
      )
      new_ylabel = (
          other.ylabel if other.ylabel is not None else self.ylabel
      )
      new_group_labels = {**self.group_labels, **other.group_labels}
  
      return Labels(
          title=new_title,
          xlabel=new_xlabel,
          ylabel=new_ylabel,
          group_labels=new_group_labels,
      )
  
file_path: hail/hail/python/hail/ggplot/labels.py
imports: from .geoms import FigureAttribute
label_desc: Use image node_id 3 for calling the Labels obj's underlying member method code with example usage: obj.merge(other) and returns: Labels